Publications
Publications
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- All HBS Web
(2,351)
- Faculty Publications (451)
- February 2024
- Article
Fifty Shades of QE: Robust Evidence
By: Brian Fabo, Marina Jančoková, Elisabeth Kempf and Ľuboš Pástor
Fabo et al. (2021) show that papers written by central bank researchers find quantitative easing (QE) to be more effective than papers written by academics. Weale and Wieladek (2022) show that a subset of these results lose statistical significance when OLS regressions... View Details
- 2024
- Working Paper
When Insurers Exit: Climate Losses, Fragile Insurers, and Mortgage Markets
By: Ishita Sen, Pari Sastry and Ana-Maria Tenekedjieva
This paper studies how homeowners insurance markets respond to growing climate losses and how this impacts mortgage market dynamics. Using Florida as a case study, we show that traditional insurers are exiting high risk areas, and new lower quality insurers are... View Details
- January 2024
- Case
Frank Cornelissen: The Great Sulfite Debate (A)
By: Tiona Zuzul and Susan Pinckney
In 2018, artisanal Italian vineyard Frank Cornelissen was one of the world’s leading natural wine vineyards. Its founder, Frank Cornelissen, faced weather related conditions that forced him to have to decide between staying true to the tenets of the natural wine... View Details
Keywords: Budgets and Budgeting; Business Earnings; Plant-Based Agribusiness; Family Business; For-Profit Firms; Small Business; Change Management; Transition; Communication Strategy; Cost vs Benefits; Financial Management; Financial Strategy; Profit; Revenue; Spending; Global Strategy; Goods and Commodities; Innovation Strategy; Crisis Management; Goals and Objectives; Growth Management; Success; Strategic Planning; Problems and Challenges; Risk and Uncertainty; Cognition and Thinking; Reputation; Adaptation; Expansion; Weather; Mission and Purpose; Values and Beliefs; Food and Beverage Industry; Agriculture and Agribusiness Industry; Europe; Italy
- January 2024
- Teaching Note
Frank Cornelissen: The Great Sulfite Debate (A) & (B)
By: Tiona Zuzul
Teaching Note for HBS Case Nos. 724-391 and 724-398. In 2018, artisanal Italian vineyard Frank Cornelissen was one of the world’s leading natural wine vineyards. Its founder, Frank Cornelissen, faced weather related conditions that forced him to have to decide between... View Details
Keywords: Budgets and Budgeting; Business Earnings; Agribusiness; Plant-Based Agribusiness; Family Business; For-Profit Firms; Small Business; Change Management; Transition; Communication Strategy; Decision Making; Cost vs Benefits; Financial Management; Financial Strategy; Profit; Revenue; Spending; Globalization; Global Strategy; Goods and Commodities; Innovation Strategy; Crisis Management; Goals and Objectives; Growth Management; Success; Strategic Planning; Problems and Challenges; Risk and Uncertainty; Cognition and Thinking; Reputation; Strategy; Adaptation; Expansion; Mission and Purpose; Values and Beliefs; Food and Beverage Industry; Europe; Italy
- January 2024
- Supplement
Frank Cornelissen: The Great Sulfite Debate (B)
By: Tiona Zuzul and Susan Pinckney
In 2018, artisanal Italian vineyard Frank Cornelissen was one of the world’s leading natural wine vineyards. Its founder, Frank Cornelissen, faced weather related conditions that forced him to have to decide between staying true to the tenets of the natural wine... View Details
Keywords: Budgets and Budgeting; Business Earnings; Plant-Based Agribusiness; Business Startups; Family Business; For-Profit Firms; Small Business; Change Management; Transition; Communication; Cost vs Benefits; Decisions; Entrepreneurship; Environmental Sustainability; Values and Beliefs; Financial Management; Financial Strategy; Profit; Revenue; Spending; Global Strategy; Goods and Commodities; Innovation Strategy; Crisis Management; Goals and Objectives; Growth Management; Success; Strategic Planning; Problems and Challenges; Risk and Uncertainty; Cognition and Thinking; Reputation; Adoption; Expansion; Weather; Mission and Purpose; Food and Beverage Industry; Agriculture and Agribusiness Industry; Europe; Italy
- January 2024
- Case
Post-Wirecard: BaFin under Mark Branson
By: Jonas Heese, Carlota Moniz and Daniela Beyersdorfer
In November 2023, Mark Branson, the head of Germany's Federal Financial Supervisory Authority (BaFin), reflected on the efficacy of the reforms initiated since the Wirecard scandal. BaFin had been discredited after Wirecard’s downfall in 2020. The press had derided it... View Details
- 2024
- Article
Financial Constraints and Short-Term Planning Are Linked to Flood Risk Adaptation Gaps in U.S. Cities
By: Shirley Lu and Anya Nakhmurina
Adaptation is critical in reducing the inevitable impact of climate change. Here we study cities’ adaptation to elevated flood risk by introducing a linguistic measure of adaptation extracted from financial disclosures of 431 US cities over 2013–2020. While cities with... View Details
- January 2024 (Revised February 2024)
- Case
Data-Driven Denim: Financial Forecasting at Levi Strauss
By: Mark Egan
The case examines Levi Strauss’ journey in implementing machine learning and AI into its financial forecasting process. The apparel company partnered with the IT company Wipro in 2017 to develop a machine learning algorithm that could help Levi Strauss forecast its... View Details
- 2023
- Working Paper
Complexity and Hyperbolic Discounting
By: Benjamin Enke, Thomas Graeber and Ryan Oprea
A large literature shows that people discount financial rewards hyperbolically instead of exponentially. While discounting of money has been questioned as a measure of time preferences, it continues to be highly relevant in empirical practice and predicts a wide range... View Details
- December 2023
- Article
Discerning Saints: Moralization of Intrinsic Motivation and Selective Prosociality at Work
By: Mijeong Kwon, Julia Lee Cunningham and Jon M. Jachimowicz
Intrinsic motivation has received widespread attention as a predictor of positive work outcomes, including employees’ prosocial behavior. In the current research, we offer a more nuanced view by proposing that intrinsic motivation does not uniformly increase prosocial... View Details
- November 2023 (Revised April 2024)
- Case
BiomX: Bringing Phage Back to the Stage
By: Paul A. Gompers, Elie Ofek, Orna Dan and Emilie Billaud
In the spring of 2023, and following the favorable results of a trial involving its phage cocktail for treating lung infections among cystic fibrosis (CF) patients, the leadership of BiomX had several critical issues to wrestle with. First, given its precarious... View Details
- November 2023 (Revised April 2024)
- Case
Celsius Network Inc.: Fear, Uncertainty, and Doubt in the Brave New World of Crypto Bankruptcy
By: Stuart C. Gilson and Sarah L. Abbott
In July 2022, Celsius Network filed for Chapter 11 bankruptcy. CEO Alex Mashinsky acknowledged that Celsius had grown its assets “faster than the Company was prepared to deploy [them]” and as a result had made “certain poor asset deployment decisions.” Two months after... View Details
- 2023
- Working Paper
Do Active Funds Do Better in What They Trade?
By: Marco Sammon and John J. Shim
We develop two new, simple measures to quantify active fund decisions at the individual position level. The intuition is to separate passive rebalancing induced by flows and position changes from active rebalancing decisions. We find that additive active rebalancing --... View Details
- November 2023
- Article
When Executives Pledge Integrity: The Effect of the Accountant's Oath on Firms' Financial Reporting
By: Jonas Heese, Gerardo Pérez Cavazos and Caspar David Peter
We study the effect of executives’ pledges of integrity on firms’ financial reporting outcomes by exploiting a 2016 regulation that requires holders of Dutch professional accounting degrees to pledge an integrity oath. We identify chief executive officers (CEOs) and... View Details
- October 2023 (Revised March 2024)
- Case
KOKO Networks: Bridging Energy Transition and Affordability with Carbon Financing
By: George Serafeim, Siko Sikochi and Namrata Arora
The problem was massive: two million hectares of African forests were lost annually to charcoal production for cooking, an area equivalent to 13 times Greater London, resulting in one billion tons of carbon emissions yearly. At the same time, an estimated 700,000... View Details
Keywords: Clean Tech; Digital; Carbon Credits; Carbon Offsetting; Africa; Emerging Markets; Energy; Climate Change; Entrepreneurship; Energy Sources; Environmental Sustainability; Health; Market Design; Business Startups; Transition; Environmental Regulation; Policy; Energy Industry; Consumer Products Industry; Africa; Kenya; Rwanda
- 2022
- Working Paper
Why Do Index Funds Have Market Power? Quantifying Frictions in the Index Fund Market
By: Zach Y. Brown, Mark Egan, Jihye Jeon, Chuqing Jin and Alex A. Wu
Index funds are one of the most common ways investors access financial markets and are perceived to be a transparent and low-cost alternative to active investment management. Despite these purported virtues of index fund investing and the introduction of new products... View Details
- September 2023
- Case
The Rise and Fall of FTX
In November 2022, Sam Bankman-Fried's multi-billion-dollar crypto exchange, FTX, collapsed, wiping out investors and throwing the crypto industry into disarray. As FTX's founder and CEO, Bankman-Fried developed a reputation for his unerring business sense and... View Details
- September 2023 (Revised October 2024)
- Case
Forecasting Climate Risks: Aviva’s Climate Calculus
By: Mark Egan and Peter Tufano
In late 2021, Ben Carr, Director of Analytics and Capital Modeling at Aviva Plc (Aviva)—a leading insurer with core operations in the UK, Ireland and Canada,—was preparing for an upcoming presentation before the company's board which included its CEO, Amanda Blanc,... View Details
- 2025
- Working Paper
Better Keep the Twenty Dollars: Incentivizing Innovation in Open Source
By: Annamaria Conti, Vansh Gupta, Jorge Guzman and Maria P. Roche
Open source is key to innovation yet is assumed to be done largely through intrinsic motivation. How can we incentivize it? In this paper, we examine the impact of a program providing monetary incentives to motivate innovators to contribute to open source. The Sponsors... View Details
- 2024
- Working Paper
The Crowdless Future? Generative AI and Creative Problem Solving
The rapid advances in generative artificial intelligence (AI) open up attractive opportunities for creative problem-solving through human-guided AI partnerships. To explore this potential, we initiated a crowdsourcing challenge focused on sustainable, circular economy... View Details